baber/WOPTO huggingface dataset:
Patent GB-900453-A (GB)
Title: Catalytic decomposition of 1, 1-dimethylhydrazine
IPC: C06B47/08
Filed: 1960-07-13
Abstract: The decomposition of unsymmetrical dimethylhydrazine is effected in the presence of a platinum group metal.  The decomposition may yield methane, ethane, nitrogen, hydrogen, carbon and ammonia according to conditions; hydrazine may be formed as an intermediate undergoing further reaction.  A diluent or carrier gas may be used in any ratio, e.g. hydrogen, helium or nitrogen; hydrogen may cause hydrogenation and higher yields of ammonia.  The reaction may be initiated at 100 DEG -500 DEG C. and subatmospheric to 500 p.s.i.g. pressure.  The catalyst, e.g. Pt, Pd, Ir, Ru or Rh may form 0,1-50% of the total catalyst, the remainder being a support, e.g. thoria, titania, zirconia, alumina, silica-alumina magnesia, asbestos or carbon.  Less that 1% of oxygen may be present as a promoter.  The reaction may be used to operate auxiliary electric power plants for missiles.ALSO:The decomposition of unsymmetrical dimethylhydrazine is effected in the presence of a platinum group metal.  The decomposition may yield methane, ethane, nitrogen, hydrogen, carbon and ammonia according to conditions; hydrazine may be formed as an intermediate undergoing further reaction.  A diluent or carrier gas may be used in any ratio, e.g. hydrogen, helium or nitrogen; hydrogen may cause hydrogenation and higher yields of ammonia.  The reaction may be initiated at 100-500 DEG C. and subatmospheric to 500 p.s.i.g. pressure.  The catalyst e.g. Pt, Pd, Ir, Ru or Rh may form 0.1-50% of the total catalyst, the remainder being a support, e.g. thoria, titania, zirconia, alumina, silica-alumina magnesia, asbestos or carbon.  Less than 1% of oxygen may be present as a promoter.  The reaction may be used to operate auxiliary electric power plants for missiles.
Patent GB-930236-A (GB)
Title: Contact shoes for electric control panels
IPC: H01R24/58
Filed: 1960-07-13
Abstract: 930,236. Two-part couplings. H. H. ROSS. June 28, 1961 [July 13, 1960], No. 24451/60. Class 38 (1). A direct contact shoe 6 for a plug-board is tubular, and has an inwardly deformed tongue 19 which makes electrical contact with a pin inserted into the shoe. A flange 15 and an outwardly deformed tongue 17 hold the shoe in a plug-board (Fig. 1, not shown) which may receive plugs as described in Specification 930,235.
Patent GB-1194159-A (GB)
Title: Improvements relating to Integrated Circuits.
IPC: H01L21/308
Filed: 1968-05-24
Abstract: 1,194,159. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 24 May, 1968 F8 June, 1967], No. 24852/68. Heading H1K. A method of making, in a semi-conductor substrate, an integrated circuit device wherein the individual semi-conductor elements are separated from one another by insulating barrier walls comprises forming openings in a masking layer on one surface of the substrate, etching to produce a pattern of channels in the substrate, wherein some parts of the channels at corners in the pattern are more deeply etched than others, forming a layer 24 of insulation over the exposed surfaces of the channels and providing semi-conductor support material 26 over this layer 24, and finally forming a second insulating layer 16 from the surface opposite to the said one surface to a sufficient depth to meet the channels and produce the insulated islands 30. The more deeply etched parts of the channels form depth guides, and in the cases where they do not extend right through the substrate, material is removed from the surface opposite the said one surface, as by lapping, until they are reached, before the second layer of insulation (32) is reached, Figs. 13, 14, not shown. The semi-conductor material may be silicon, germanium or a Group III.V compound, and the layers of insulation may be silicon dioxide or silicon nitride. The masking film is a composite layer of gold and chromium and the patterns are determined by the conventional photoresist process. Details of the chemical etchants used to etch the mask, insulation and semi-conductor material are given.
Patent GB-448023-A (GB)
Title: A process for producing highly moistened artificial silk bobbins
IPC: D01D10/04
Filed: 1934-08-27
Abstract: Moist artificial silk is wound on a bobbin and, shortly before packing, absorbent material such as paper, artificial silk waste, wadding, viscose sponge or the like containing a quantity of water corresponding with that required to give a desired higher moisture content, is inserted into the preferably perforated hollow core of the bobbin.  The bobbin is then packed in waxed paper, asphalted paper, metal foil, or like material to exclude water and air.
Patent GB-502095-A (GB)
Title: Improvements in or relating to stays and like supporting devices
IPC: H04N5/74
Filed: 1937-09-10
Abstract: 502,095. Stays for hinged articles. SPENCER, R. E. Sept. 10, 1937, No. 24665. [Class 65 (i)] A stay for the lid 2 of a cabinet 1 comprises two telescopic parts 22, 23 adjustably clamped together by a screw &c. 25 engaging a recess 24 in the part,22 to prevent complete separation of the parts. The free end of the stay is guided between two rollers &c. 9, 11, of which 11 is pressed by a spring 17 against the stay. The stay may have one or more notches 15 to engage the peripheries of the rollers, and an end stop 20 to limit adjustment. The length of the stay can be adjusted while it is held by the rollers. In another form, the upper end of the part 22 carries a threaded rod engaged by a guided nut, rotation of which adjusts the length of the stay. In another form, the recess 24 is formed with teeth engaged by a pinion, worm, &c. mounted in the part 23, so that by rotating the pinion &c. the length of the stay may be varied.
Patent GB-579228-A (GB)
Title: Improvements in or relating to door or gate-operative mechanisms
IPC: E05F15/14
Filed: 1944-12-11
Abstract: 579,228. Door-operating mechanism. EXPRESS LIFT CO., Ltd., DIXIE, W. A., and KRUGER, S. Dec. 11, 1944, No. 24756. Addition to 572,189. Drawings to Specification. [Class 65 (i)] Sliding doors are power-operated through a mechanism as described in the parent Specification and including a telescopic link, the parts of which are kept normally from relative movement by a spring-pressed ball-catch. The doors can be opened manually if sufficient force is applied to them to overcome the holding effect of the ball-catch. If the doors are so opened and, later, the power operating gear is moved to open position, or, the doors are closed manually, the telescopic member returns to its normal length and the ball-catch parts are re-engaged.
Patent GB-599948-A (GB)
Title: Improvements in temperature change compensating devices for hydraulic systems
IPC: F15B7/00
Filed: 1945-09-25
Abstract: 599,948. Telemotor systems. BENDIX AVIATION CORPORATION. Sept. 25, 1945, No. 24853. Convention date, Oct. 13, 1944. [Class 69 (ii)] Mechanism for a hydraulic control system comprises a cylinder, means slidable in the cylinder and responsive to a change in volume of liquid in the system, and means for acting on said slidable means to compensate the system automatically for changes in liquid volume due to temperature variations. The cylinder 70 contains two pistons 94, 96 with racks 114, 116 engaging a pinion-wheel 118 rotatably mounted on a pin 120 on the rod 92. The space between the pistons is in free communication with a space 74 filled with gas at a predetermined pressure. Changes in volume in the liquid in the system will cause the pistons to move towards or away from each other under compression or expansion of the gas between them. The pin 120 is connected to a mechanism for indicating the condition of the liquid in the system. Valves such as 66, 68 are provided for removing air from the system and initially synchronizing it. A modified embodiment is described in which the rod 92 is replaced by a racked sleeve, and the space between the pistons is filled with liquid under pressure of a gas acting on a flexible diaphragm.
Patent GB-153158-A (GB)
Title: Improved trolley head for electrically propelled vehicles
IPC: B60L5/06
Filed: 1919-10-11
Abstract: 153,158. Lewis, J. N. Oct. 11, 1919. Trolly heads; trolly pulleys.-A trolly head comprises a pair of wheels B mounted on inclined axles A on a swivelled shaft D and having bevelled faces which contact from below with the sides of the wire. Ball bearings may be provided between the wheels B and the axles A.
Patent GB-849982-A (GB)
Title: Improvements in or relating to commercial vehicle bodies
Inventor: SQUIER BENJAMIN TINSLEY
IPC: B62D29/04
Filed: 1957-08-07
Abstract: 849,982. Laminates. MICKLEOVER TRANSPORT Ltd. Sept. 24, 1958 [Aug. 7, 1957], No. 24943/57. Class 140. [Also in Group XXXII] A method of forming a vehicle body comprises building up on the surface of a former of suitable shape, a first skin of glass fibres, e.g. a chopped strand mat, and synthetic resin, e.g. a cold-curing polyester, applying to the still tacky surface a substantially continuous layer of lower density such as foamed polyvinylchloride, polystyrene, or polyurethane, cork, expanded ebonite or rubber, balsa, or a honeycomb structure of glass fibre, cotton or metal foil, applying a coat of synthetic resin to the said layer and building up a second skin thereon from layers of synthetic resin and glass fibres and according to whether the mould is a male or female first or last applying a coating of synthetic resin containing an abrasion-resisting filler in quantities between 20 and 50% by weight. The abrasion-resisting filler may be powdered aluminium oxide granite or slate dust.
Patent GB-733748-A (GB)
Title: Improvements in or relating to radar reflectors
IPC: H01Q15/20
Filed: 1953-09-10
Abstract: 733,748. Radio reflectors. SVENSKA AKTIEBOLAGET GASACCUMULATOR Sept. 10, 1953 [Oct. 16, 1952], No. 25064/53. Class 40 (7). A radar reflector the reflective capacity of which is substantially constant in all directions in one plane consists of eight corner reflector units. These are arranged in two groups of four, the units in each group having base-lines which form the sides of a square and the two squares so formed being in parallel planes between which lie all the units. The units of one group are disposed in inverted relationship in the spaces between the units of the other group. Fig. 1 shows a view of a reflector with the two groups of units slightly separated vertically so as to assist in understanding the construction. Each unit is in the form of an equi-lateral three-sided pyramid with angles of 90 degrees between the sides at the apex. One group of four units has base lines 10, 11, 12 and 13 and the apices 18 and 19 of the front two of them can be seen. The bottom group is similar to the top group but inverted and turned through 45 degrees in the plane of the base lines. Because of this 45 degree shift to fit the two groups together, when they are joined to each other with the plane of the openings (e.g. 10, 14, 15) perpendicular to the base planes adjoining sides such as 15 and 24, 16 and 25, cross at an oblique angle and the two groups are only in contact at eight points so that there are only these eight points at which they can be welded or otherwise fixed together. To enable adjacent edge lines to be welded together along their whole length a modified form in which the reflector openings are no longer perpendicular to the bases but angled outwards may be constructed. In this modification the top group of units are angled upwards at an angle of about 14 degrees and the units of the bottom group similarly angled downwards. For some purposes the construction of Fig. 3 is preferred wherein the reflector openings are angled from the perpendicular to the base planes to make adjacent edges coincide but the symmetrical axes of the units all lie parallel to the baseplanes. This is achieved by increasing the lengths of the edges 14, 15, 16, 24 and 25 to approximately one and a third times the length of the base edges 10, 11, 12 and 13. To mount the reflector a pole or mast may be passed up through it between the apices of the units. As these form two groups of four at different levels they may be adequate to locate it but if not, further support may be provided by top and bottom base plates with holes such as 66 cut therein. To prevent movement a ring or rings may be provided on the pole or mast. Construction of reflectors according to the invention by folding flat blanks (one for each group) is described with reference to Figs. 6 and 7 (not shown). It is preferred, however, to use blanks as in Figs. 8 and 9 (not shown) which give a complete reflector by the folding of one blank and are more economical in material.
Patent GB-1508362-A (GB)
Title: Mechanically operated disc brake
IPC: F16D55/224
Filed: 1975-06-11
Abstract: 1508362 Mechanically-operated disc brakes SOC ANON FRANCAISE DU FERODO 11 June 1975 [18 June 1974] 25079/75 Heading F2E The operating lever 36, Fig. 1 of a spot-type disc brake has two opposite webs 37, 38, Fig. 2, connected at at least one of their ends by a portion 39; the lever is articulated to a transfer member 19 (which is movable for transmitting braking action to the second brake pad), by one of its webs 37, and resilient means for returning the lever to a rest position comprises a compression spring 50 interposed between the transfer member 19 and the inside face of the other web 38 of the lever, the spring axis being spaced from, and extending perpendicularly to, the articulation axis, in the rest position of the lever. As shown, web 37 has a notch 40 forming a pivoting throat which co-operates with a pivoting-edge 41 formed by a pin 42 forcefitted in the transfer member 19; spring 50 serves also to maintain these parts in contact. The transfer member 19 is urged downwards and leftwards, Fig. 3, by a spring 28 having two upper blades 30A, 30B, Fig. 2, and two lower blades 33A, 33B, each latter engaging one part 12A or 12B of the fixed support 11. In Figs. 4 to 6 (not shown) the other ends of webs 37, 38, are also connected so that the lever forms a closed loop, and a protective cover (68) in the form of a cup is secured to the lower face of the operating lever, enclosing the end of arm 22A of the transfer member 19; an upper cover (69) in the form of an annular resilient membrane surrounds arm 22A and has its outer periphery located by a channel-section ring (70) on the operating lever.
Patent GB-970652-A (GB)
Title: Nematode control
IPC: A01N37/02
Filed: 1961-07-12
Abstract: Nematodes living in an area of land are controlled by applying to the land an alkali and/or alkaline earth metal formate and/or ammonium formate either as such or in the form of a dust, solution or dispersion containing an inert solid or liquid carrier, a soil conditioner and/or a fertilizer.
Patent GB-1000377-A (GB)
Title: Vacuum trap and valve combination
IPC: F04F9/00
Filed: 1962-07-02
Abstract: 1,000,377. Valves and baffles for high vacuum systems. UNITED STATES ATOMIC ENERGY COMMISSION. July 2, 1962 [July 14, 1961], No. 25254/62. Heading F1E. In a vacuum trap and valve combination for a high vacuum system containing a valve gate 18, Fig. 1, which when closed fits closely within an inlet opening 14 having vacuum sealing means 21 and when open obstructs line of sight between the inlet and outlet openings 14, 16 whilst allowing flow path space, gas adsorbent material, e.g. activated alumina or zeolyte, covers the* entire inside surface of the body shell and the surface area of the valve gate facing the outlet opening 16, and electric heating coils 24 are provided for heating the gas adsorbent material to bake out temperatures. The vacuum sealing means is an inflatabledeflatable gasket 21 and the coils heat the gas adsorbent material through heat conducting walls. In another embodiment a metallic valve element 32, Fig. 2, is moved by a screw rod 33 in a cylindrical or cubical body shell. In a further embodiment the gas adsorbent material may be cooled by enclosing the exterior walls of the trap within a shielding jacket through which coolant is passed.
Patent GB-903750-A (GB)
Title: Improvements in or relating to conveying apparatus
IPC: B65G49/04
Filed: 1960-07-20
Abstract: 903,750. Step-by-step conveyers. UDYLITE RESEARCH CORPORATION. July 20, 1960 [Aug. 7, 1959], No. 25353/60. Class 78 (1).  Article carriers 54 which are advanced by reciprocating bars 56, carrying ratchet operating pushers 60, over a stationary track section 46, and track sections 44, 48, 48a on a vertically reciprocating carriage 28, are selectively movable to and from an auxiliary track section 50 by timed horizontal movements of sections 48, 48a. The carriers are provided with retractable cams (not shown) which, when extended at the loading station, cause the associated carriers to be transferred to section 50, where they are advanced by reciprocating bars 86 having ratchet pushers 88. The apparatus is described in connection with an electroplating plant in which articles transferred to section 50 are caused to by-pass a treatment tank 23a. Movements of carriage 28, sections 48, 48a, and ratchet bars 56, 86 are effected by hydraulic thrustors which are operated by an electric control system (Figs. 10, 11, not shown) described in detail in the Specification. Specification 715,084 is referred to.
Patent GB-425367-A (GB)
Title: Process for the manufacture of azodyestuffs containing copper in a complex form
IPC: C09B43/10
Filed: 1933-09-13
Abstract: Copper complex compounds of azo dyes are made by combining two molecules of a copper complex compound of an o : o<1>-dihydroxymonoazo dye containing a nitro group in p-position to the azo bridge by reducing the two nitro groups with an alkaline reducing agent to the azo or azoxy group.  They dye cotton and regenerated cellulose in fast blue to grey shades.  In an example, the copper compound of the dye 5-nitro-2-aminophenol --> chromotropic acid is reduced with alkaline grape sugar.  Other components specified are 5-nitro-4-chloro-2-aminophenol; 8 - ethoxy - 1 - naphthol-3 : 6-disulphonic acid, 2-naphthol-3 : 6-disulphonic acid and 2-amino-5-naphthol-1 : 7-disulphonic acid.  The Specification as open to inspection under Sect. 91 comprises also 1-amino-8-naphthol and N-substitution products thereof and 3-aminophenol-4-sulphonic acid as coupling components.  Those dyestuffs containing diazotizable amino groups can be diazotized on the fibre and developed.  The above described dyestuff containing H acid as component when diazotized on the fibre and coupled with m-phenylenediamine or b -naphthol yields grey and bluish-black shades respectively.  This subject-matter does not appear in the Specification as accepted.
Patent GB-425368-A (GB)
Title: Improvements in or relating to shirts
IPC: A41B1/10
Filed: 1933-09-14
Abstract: 425,368. Shirts. BLUE, S. D., 235, West End Avenue, New York, U.S.A. Sept. 14, 1933, No. 25506. Convention date, Sept. 15, 1932. [Class 141] The front of a shirt is stiffened by means of a removable stiffener 38, inserted between the plies of the overlapping fly portion 20 of the shirt through a slit 36 on the inner side of the shirt, and bifurcated, as shown in Fig. 5, so as to avoid the buttonholes, which are stitched through all the plies. The slot in the stiffener may be widened, as at 46, to allow the buttons to pass through, and is kept in place by stitching across the upper end of the passage between the plies and by the lower lip 54 of the slit 36.
Patent GB-478900-A (GB)
Title: Adjustable control lever
IPC: G05G1/04
Filed: 1936-09-21
Abstract: 478,900. Implements for working land. DODD, V. J. Sept. 21, 1936, No. 25606. [Class 6 (i)] [Also in Group XXIV] A control - lever device comprises two angularly-adjustable hinged parts 10, 11 and a quadrant 12 to which the lever may be locked, both the disengagement of the lever from the quadrant and the angular adjustment of the parts being effected by a lateral effort exerted at the control end of the lever. In the form shown, the lever-part 11 carries a pin 21 which is normally held by the spring 20 in engagement with one of the holes 22 in the quadrant 19 on the lever-part 10. The part 10 carries a pin 14 normally held in engagement with notches 13 on the fixed quadrant 12 by means of a spring 16 which acts through an eye-bolt 15 on a jockey member 17 carrying a roller 18 running on the quadrant. Downward movement of the part 11, Fig. 2, releases the pin 21 from the quadrant 19, while upward movement of the part 11 releases the pin 14 from the quadrant 12. An arrangement of the quadrant 19 at right-angles to a vertical leverpart 10 is shown. A closed type of quadrant 12 with holes for the pin 14 may be employed.
Patent GB-1512478-A (GB)
Title: Signal delay means using bucket brigade and sample-and-hold circuits
IPC: G11C11/24
Filed: 1976-06-21
Abstract: 1512478 Time delay for analogue signals CALIFORNIA MICROWAVE Inc 21 June 1976 [30 June 1975] 25607/76 Heading H3U Apparatus to time delay analog information signal comprises a clock 28 to generate a first pulsed timing signal 32 and a second pulsed timing signal 34 whose pulses are delayed with respect to the first, a pulse stretcher 36 to delay the trailing edges of the pulses in the second timing signal, a bucket brigade delay line 10 responsive to both the first pulses and the stretched pulses to sample successive samples of the input to generate a train of pulses with a voltage amplitude proportional to the samples, to delay these pulses and a samplehold circuit 20 responsive to the unstretched second pulses to reconstruct an analog signal approximating to the input signal delayed by a predetermined time.
Patent GB-1470341-A (GB)
Title: Dyestuffs containing amidine groups
IPC: C09B5/24
Filed: 1974-06-10
Abstract: 1470341 Dyestuffs containing amidine groups CIBA-GEIGY AG 10 June 1974 [29 June 1973] 25688/74 Heading C4P  The invention comprises dyestuffs of general formula wherein F<SP>1</SP> is an angularly condensed ring system containing at least 3 rings, h is 1, 2 or 3 and R, R 1  and R 2  are optionally substituted cycloalkyl, aryl or heterocyclic group or an optionally substituted alkyl group which may be interrupted by one or more hetero atoms, R may be alkenyl, R and/or R 1  may be H, R 1  and R 2  together with the N atom may form a 5- or 6- membered hetero ring which may be fused to a further ring, or R and R 2  may join to form a heterocyclic ring. F<SP>1</SP> may be a radical of the formulae in which one or more carbon atoms may be replaced by nitrogen, oxygen or sulphur, or may be a radical of 1,9-isothiazole anthrone, 1,9- anthrapyrimidine, 1,9-pyrazole anthrone and N-methyl - 1,9 - anthrapyridone. They may be prepared by reacting an amidinium salt of the general formula in which F<SP>1</SP>, R, R 1 , R 2  and n are as above with a base and subsequently optionally nitrated and/or sulphonated. Dyes having no acid watersolubilizing groups give greenish-yellow, yellow, orange, reddish-yellow and red shades on polyester and cellulose acetate fibre materials and dyes containing sulphonic acid groups give similar shades on polyamides. In Example 1, 2-cyano-3-amino-benzanthrone is prepared by condensing anthracene 9- aldehyde with molonic acid dinitrile and the intermediate formed is then reacted with a Friedel-Crafts reagent.